NOTE : There will be eight questions of 20 marks each, four from each section. Students are required to attempt five questions selecting at least two questions from each section. Use of Calculator is allowed.

1.Block Transfer:- Data bytes are stored in memory locations from XX50H to XX5FH To insert an additional five bytes of data, it is necessary to shift the data string by five memory location. Write a program to store a data string from XX55H To XX64H. Use any 16 bytes of data to verify your program.

2.Addition with Carry: Six bytes of data are stored in memory locations starting at XX50H. dd all the data bytes . Use register B to save any carry generated while adding the data bytes. Store the sum at two consecutive memory locations XX70H and XX71H

3.Checking for a particular data byte: A set of eight readings is stored in memory location starting at XX50H . Write a program to check whether a byte 40H exists in the set. If it does , stop checking, and display its memory location, otherwise output FFH

Write a program for BCD to Seven Segment LED code conversion

Write a program for Binary to ASCII code conversion.

Write a program for BCD addition.

Write a program for multiplication of Two 8 bit unsigned nos.

Interfacing experiments

Study of 8255 interfacing card.

2)Study of 8279-interface card.

3)Study of 8257 DMA controller interface card.

4)Study of 8253 PIC Interface card.

5)Interfacing of 8085 with Stepper Motor.

6)Interfacing of 8085 with ADC and DAC.

CLASS:B.E 5TH SEMESTER BRANCH:COMPUTER ENGINEERINGCOURSE TITLE: COMPUTER NETWORKS LAB.COURSE NO: COM-514DURATION OF EXAM: 3 HOURSL:3 T:2 Marks: Theory:100 Sessionals:40 Case Study of LAN
Students shall be exposed to the designing and working of a LAN, along with suitable Software.